What is the slope of a roof that rises 12 feet over a run of 28 feet? a. StartFraction negative 3 Over 7 EndFraction c. StartFraction 3 Over 7 EndFraction b. StartFraction negative 7 Over 3 EndFraction d. StartFraction 7 Over 3 EndFraction Please select the best answer from the choices provided

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y=35

x=5

step-by-step explanation:

answer: the prove is mentioned below.

step-by-step explanation:

an isometric rigid transformation is a transformation of the plane that preserves lengths and angles.    

that is, the pre-image and the image under a rigid transformation will be congruent.

here, given: cb ║ ed and cb ≅ ed

prove that: δ cbf ≅ δ edf

since, cb ║ ed

therefore, by the alternative interior angle theorem,

∠fcb ≅ ∠fed

∠fbc ≅ ∠ fde

and, cb ≅ ed ( given)

therefore, the angles and sides are persevered after transformation.

thus, by the definition of isometric rigid transformation,

δ cbf ≅ δ edf